Mercury 250HP XXL Four Stroke Outboard Motor

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$12,461.15

Mercury 250HP XXL Four Stroke Outboard Motor
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Description

Mercury 250HP XXL Four Stroke Outboard Motor for Sale

Complete Specifications, Advantages & Why You Should Purchase It from Us

High-end offshore performance is provided by the Mercury 250HP XXL Four Stroke Outboard Motor, which is one of the best in the category of 250 horsepower marine propulsion units that are powerful, dependable, and intelligent. Built with cutting-edge technology, high corrosion strength, and a noiseless operation, the outboard provides excellent performance under all marine conditions.

And yes—we are selling the Mercury 250HP XXL Four Stroke Outboard Motor, brand new, fully warrantied, and ready to ship directly to your dock, marina, or garage. Whether you’re upgrading a fishing boat, powering a new build, or replacing an old twin-engine setup, this motor is a perfect match for power-hungry applications.

This detailed blog post contains everything you want to know about the Mercury 250HP XXL Four Stroke engine—technical details and basic features to compatibility, uses, and why buying it from us is your best deal.


What Is the Mercury 250HP XXL Four Stroke Outboard?

The Mercury 250HP XXL Four Stroke is an aspirated V8 outboard powerhead with a heavy-duty 4.6L foundation, delivering unmatched torque and acceleration with effortless, fuel-economizing performance. It features the XXL shaft length (30 inches) and is ideal for deep-transom offshore boats, commercial boats, and twin/triple engine applications where control and balance are paramount.

This motor is Mercury’s top in engineering terms, providing modern power with lightweight performance, advanced digital control systems, and near silent running—all in hydrodynamic, sleek design.


Full Specifications – Mercury 250HP XXL Four Stroke Outboard

Feature Specification
Engine Type V8, 4-stroke
Displacement 4.6 Liters (279 CID)
Horsepower 250 HP @ 5600–6000 RPM
Induction System Naturally Aspirated
Fuel System Electronic Fuel Injection (EFI)
Starting SmartStart Electric
Shaft Length 30 inches (XXL)
Steering Compatible with Hydraulic & Digital
Gearcase Advanced MidSection (AMS)
Gear Ratio 1.85:1
Alternator Output 85 Amps
Weight ~527 lbs (239 kg)
Trim System Power Trim & Tilt
Cooling System Water-cooled w/ Thermostat
Exhaust Through-Prop
Fuel Type 87 Octane Unleaded
Emissions EPA & CARB Compliant

Key Features of Mercury 250HP XXL Four Stroke

1. Naturally Aspirated V8 Power

The 4.6L V8 engine has been designed to deliver high-quality torque and horsepower without the complication of a supercharger. This offers long-term performance, clean fuel consumption, and easy maintenance.

2. Advanced MidSection (AMS)

This patented mounting system isolates engine vibration from the boat, greatly reducing noise and glides cruising for everyone aboard.

3. XXL Shaft for Deep Transoms

The 30″ shaft length (XXL) is ideal for deep transom boats such as commercial rescue boats, deep-V hulls, and big offshore boats. It provides stability and reduces cavitation in high-swell situations.

4. Digital Throttle & Shift (DTS)

Feel precise, responsive control with Mercury’s advanced DTS system. No more sticky cables—only smooth, effortless gear shifting and throttle response.

5. High-Output Alternator

Enjoy an 85-amp alternator (20 amps idle), easily powering electronics like GPS, fish finders, sound systems, and livewell pumps—without fear of draining the battery.

6. SmartCraft Compatibility

SmartCraft-ready engine offers integration with Mercury VesselView displays and gauges, including real-time engine data, diagnostics, and performance statistics.


Applications – What Boats Is It Best For?

The Mercury 250HP XXL Four Stroke is best for:

  • Offshore fishing boats

  • Commercial workboats

  • Deep-V center consoles

  • Pilot boats

  • Rescue craft

  • Patrol vessels

  • High-performance bay boats

  • Multi-engine setups (twin or triple installations)

If your boat requires a longer shaft length or has repetitive offshore or harsh water use, this engine is built to excel.


Why Choose an XXL Shaft Motor?

The 30″ XXL shaft is required for:

  • Vessels with deeper transom wells

  • Offshore use with high freeboard

  • Multi-engine vessels where even height is critical

  • Reducing cavitation on large wave operation

  • Bracket-mounted engine boats

Not certain what shaft length your transom needs? Contact us—we’ll help you take the right measurements and fit like a glove.


Mercury 250HP Four Stroke vs. Other Outboards

Feature Mercury 250HP XXL Yamaha F250 Suzuki DF250
Displacement 4.6L 4.2L 4.0L
Shaft Length 30″ (XXL) Optional Optional
Weight ~527 lbs ~562 lbs ~606 lbs
Charging Output 85A 50A 54A
Digital Throttle Standard Optional Optional
AMS Vibration Control Yes No No

Why Buy the Mercury 250HP XXL From Us?

When you choose us as your engine supplier, you’re not acquiring a product—you’re acquiring a service partnership. Here’s what you get:

Brand New Engines – Factory-direct, never opened, and Mercury authentic
Full Warranty – 3-year limited with extended coverage available
Expert Support – Pre-sale advisory and after-sale support
Rigging Packages – Controls, DTS systems, fuel lines, gauges
Global Shipping – International shipping with custom packaging
Fleet and Bulk Discounts – Available for government or commercial orders
Financing Available – Contact us about trade-in credits or financing plans


Frequently Asked Questions (FAQs)

Q1: Is the engine saltwater-rated?
A: Yes! The Mercury 250HP is built for salt and freshwater with corrosion-resistant alloys, stainless hardware, and sealed electrical components.

Q2: Do I fuel it with regular gasoline?
A: Yes. The engine runs great on 87-octane unleaded gasoline.

Q3: What rigging accessories are available?
A: We provide complete kits with DTS digital controls, hydraulic steering, intelligent gauges, fuel lines, and mounting kits.

Q4: Can I install it myself?
A: We recommend professional installation. That being said, we provide tech support, manuals, and video guides if you’d prefer to DIY or have your own mechanic.

Q5: Do you offer after-buy support?
A: Absolutely. From installation advice to parts and service appointments, we’re here for you throughout.


How to Order Your Mercury 250HP XXL Four Stroke

This is how you can order your engine from us quickly and securely:

  1. Contact Us – Phone or email to find out what’s in stock and request a quote

  2. Confirm Compatibility – We’ll help you make sure to get the right shaft length and accessories

  3. Select Rigging Options – Gauges, DTS, steering, and others

  4. Secure Payment – Credit card, wire transfer, or qualified financing

  5. Shipping – We pack and ship nationwide and globally

📞 Call now for quote
📦 In stock and ready to ship today


Final Thoughts: Is the Mercury 250HP XXL Right for You?

If you need a high-horsepower outboard for deep-transom or offshore use, the Mercury 250HP XXL Four Stroke is your model. With spot-on control, V8 power, digital throttle, and one of the quietest rides in the industry, it delivers a best-in-class boating experience.

And buying it from us assures:

  • Mercury-certified new inventory

  • Quick delivery

  • Technical advice and rigging support

  • Fleet and individual discounts

  • A buddy who understands your marine needs


Don’t Wait – Buy Your Mercury 250HP XXL Four Stroke Today!

Whether you’re powering a solo offshore hull or building a twin-engine giant, the Mercury 250HP XXL Four Stroke gives you muscle, control, and confidence.

📞 Call us now for your quote
🌍 We ship worldwide
🛠️ Installation support available
Your next adventure starts with Mercury power

 

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